[MacPorts] #62991: m4 @ 1.4.19+universal Failed to configure

[MacPorts]

#62991: m4 @ 1.4.19+universal Failed to configure
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  Reporter:  FaradayLight  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.1
Resolution:                |   Keywords:  arm64 bigsur
      Port:  M4            |
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Comment (by kencu):

 the Tiger thing is different --  I think I know what will fix that.

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Ticket URL: <https://trac.macports.org/ticket/62991#comment:3>
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